Mill.



W. P. CLIFFORD.

MILL.

APPLICAHON FILED JAN-3,1917;

IL ,,%A 1 o Patented Nov. 27, 1917.

2 SHEETSSHEET I.

William P. CLLfiord;

EE..E

W. P. CLIFFORD.

MILL.

APPLICATION FILED JAN- 3, 19!? 2 SHEETS-SHEET 2- YJLLLLQM P. CMj-jo'rrdl lfTE @TATE@ PATENT @FFTQEQ WILLIAM P. CLIFFORD, QF OTTUMWA, IOWA, ASSIGNGR OF ONE-HALF TO J. A. BALLARD, or TTU WA, w

MILL.

Application filed January 3, 1917.

To all whom it may concern:

Be it known that I, WILLIAM P. Cnrrronn, a citizen of the United States, residing at Ottuinwa, in the county of W'apello and State of Iowa, have invented certain new and useful Improvements in Mills, of which the following is a specification.

This invention relates to certain new and useful improvements in mills, and it has for its primary aim to provide a combination machine which will have a maximum capacity, operate efficiently, and mill several foods or products in a single operation or at one time.

Further, the invention has for an object to provide an improved electric drier in combination with the mill for kiln-drying the product of one grade.

The invention further resides in the features of construction, arrangement and combinations of parts hereinafter clearly described in detail in the specification, succinctly defined in the appended claims, and illustrated in the attached drawings where- 1n-- Figure 1 is an elevation of my improved machine, parts being broken away for the sake of clearness;

Fig. 2 is a transverse vertical section thereof;

Fig. 3 is a top plan view of the grinding rolls; and

Fig. 4 is a similar view of the bolter.

Referring to like parts by similar characters of reference, the numeral 1 designates the general supporting frame structure in which the bolter or bolting reel 2, preferably of hexagonal section, is journaled on an incline, as shown.

In the upper end of the bolting reel is a conveyer tube 3 which extends into the same and is arranged concentrically therewith, the inner end discharging into said reel whereas the outer end is connected by a chute 4 to a superposed hopper 5. The grinding rolls 6 are adjustably mounted in the hopper for coarse or fine cut, and the ribs of one roll incline oppositely to the ribs or corrugations of the other whereby they will cross each other at their point of contact, this being essential in making a wheat breakfast food since much more food is obtained from the wheat with the diagonally corrugated rolls.

The bolter is supported on'the shaft 7 which extends through the conveyer tube for Specification of Letters Patent.

Patented Nov, 27, 1917,.

Serial no. 140,350.

supporting a spiral conveyer S and projects beyond said tube to receive a pulley 9 over which a suitable driving belt passes.

Extending lengthwise beneath the bolter is a vertical series of compartments 10, 11, 12 and 13 which are separated from each other by v.ie independently movable slides 1 f. Journaled longitudinally in each compart ment is a conveyor shaft 15 adapted to be rotated by a suitable sprocket chain (not shown) taking over the sprockets 16, and on each shaft 15 is a spiral conveyer operating in the respective compartment.

The bolting reel is provided with varying screening surfaces, the first two sections 17 and 18 comprising bolting silk cloth of such grade as to obtain bakers flour and pan cake middlings, respectively, the third section 19 being covered with grit gauze cloth through which whole wheat and barley germ breakfast food sift, and the fourth section 20 for the bolting of bran, said last section being of wire cloth.

The underlying compartments are provided one for each section of the bolting reel and are defined for the proper feeding or directing of the sifted products by the end partition walls 21. Thus should it be new esary to carry off any two products unsegregated, this may be accomplished by simply removing the removable slides or valves 14.

The breakfast food compartment dis charges through an outlet 22 into an electric drier 23 comprising a tube inclosing a spiral eonveyer 24 and being surrounded by an electric heating unit, said conveyer continually agitating the food while carrying it from the forward end to the delivery end where it is discharged through the chute 25.

The fluff is carried up the tube 26 by the draft created by the suction fan 27 and passes over the overhanging shelf 28 in the air chamber 29, into the receiver chamber 30 from where it may readily be removed through valve or gate 31.

The engine power (not shown) may be connected to the sprocket 82 on the bolter shaft, and the pulley 9 on the latter drives the fan through the instrumentality of belt 33, and from the fan shaft the conveyor of the electric drier is driven by belt 34.

The machine operates efficiently and has a maximum capacity for producing several difierent kinds of foods in a single operation The invention is illustrated in its preferred embodiment although it is intended to modify the structure within the scope of the appended claims, when such modification is essential or desirable.

What I claim is:

1. In a mill, bolting reel having a plurality of screen sections, and an underlying conveyer mechanism comprising an individual compartment for each screen section arranged in superposed relation to one another, and a conveyer in each compartment extending only the length of the respective screen section from a common end thereof.

2. In a mill, a bolting reel having a plurality of screen sections, and an underlying conveyer mechanism comprising an individual compartment for eachscreen section arranged in superposed relation with one another, and a spiral conveyer in each compartment, said conveyers being progressively in creasing lengths from the upper one downwardly, each conveyer being longer than the next upper one by a length equal to the width of the respective screen section.

3. In a mill, a revolving bolter having defined bolting sections, a vertical series of underlying compartments, upright partitioning walls alined with the lines of division between the bolt-ing sections and extending down into a respective one of the compartments to define said compartment, conveyers in the compartments, and removable closures between the vertical compartments whereby communication between any two compartments may be obtained for mixing any two products bolted by difi'erent sections of the bolter.

In testimony whereof I aiiiX my signature.

WILLIAM I. CLIFFORD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner oi Patents,

Washington, D. C. 

